High-speed communication method for linkage bus of fire extinguishing system

The invention is applicable to the technical field of fire fighting, and provides a high-speed communication method for a linkage bus of a fire fighting system, which comprises the following steps: a fire fighting linkage controller exhausts all linkage scenes and generates a linkage lookup table; the fire-fighting linkage controller sends the linkage lookup table to all terminal devices communicated with the fire-fighting system linkage bus for storage through the fire-fighting system linkage bus; the fire-fighting linkage controller broadcasts and sends a linkage instruction containing a linkage scene number to all terminal equipment through a fire-fighting system linkage bus; the linkage lookup table comprises linkage scene numbers in one-to-one correspondence with all linkage scenes and to-be-set state numbers corresponding to the states of the terminal devices in each linkage scene; according to the invention, the time delay of issuing an instruction by the fire-fighting linkage controller through the bu